We have a Rackable Systems server used for backup storage. Recently we purchased a couple 3TB drives to expand the storage, but they are only showing a capacity of 746.52 GB as reported by 3ware's tw_cli utility and the 3ware card's BIOS. I have been searching, but I cannot find a spec sheet that lists the card's maximum single drive capacity supported. I also cannot figure out why the drive shows 746.52 GB instead of 2 TB, if in fact the 2TB compatibility barrier has been reached.
Storage controller: 3ware 9500S-4LP (Firmware: FE9X 2.08.00.009)
Two new drives: Seagate SV35 ST3000VX000 3TB drives.
Are the new drives too large?
Why do the 3TB drives report smaller than the 1TB drive (listed as 931.51 GB)?
Output from tw_cli:
/c1 show
Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy
------------------------------------------------------------------------------
u0 SINGLE OK - - - 372.519 OFF OFF
u1 SINGLE OK - - - 931.312 OFF OFF
u2 RAID-1 OK - - - 745.048 ON OFF
Port Status Unit Size Blocks Serial
---------------------------------------------------------------
p0 OK u0 372.61 GB 781422768 *snip*
p1 OK u1 931.51 GB 1953525168 *snip*
p2 OK u2 746.52 GB 1565565872 *snip*
p3 OK u2 746.52 GB 1565565872 *snip*
Edit: Added 3ware card firmware version.